BaZi (八字), also called the Four Pillars of Destiny, is a traditional Chinese system that maps a person's birth moment onto four pairs of characters: one each for the year, month, day, and hour. Each pair has a Heavenly Stem and an Earthly Branch, and each character carries an element. Reading a chart means studying how these elements support and restrain one another around the Day Master.
BaZi compared with Western astrology
BaZi
Western astrology
Basis
Chinese solar calendar, stems and branches
Planetary positions in the zodiac
Core identity
Day Master
Sun sign, with Moon and Ascendant
Inputs
Birth date, time, place
Birth date, time, place
Timing
10-year Luck Pillars and annual pillars
Transits and progressions
Language
Five Elements and Ten Gods
Planets, signs, houses, aspects
The building blocks
10 Heavenly Stems: Yang and Yin versions of the five elements
12 Earthly Branches: the zodiac animals, each with hidden stems
60-pillar cycle: the stems and branches paired in rotation
Solar terms: 24 divisions of the solar year that set the Year and Month Pillars
BaZi (八字) means “eight characters.” It refers to the eight Chinese characters formed by the stems and branches of a person's birth year, month, day, and hour.
Is BaZi the same as Chinese zodiac?
No. The Chinese zodiac uses only the animal of your birth year. BaZi uses four pillars, and your year animal is just one of the eight characters.
Do I need my exact birth time for BaZi?
An exact time gives you all four pillars. Without it you can still calculate three pillars, including your Day Master in most cases.
How do I find my Four Pillars?
Enter your birth date, time, and place in a BaZi calculator. The chart returns four pairs of characters for your year, month, day, and hour.
How accurate is BaZi?
The calendar calculation is exact once the time conventions are set, but interpretation is a matter of tradition and judgment. BaZi has no scientific validation as a way of predicting events.
Is BaZi scientifically proven?
No. BaZi is a traditional Chinese system with no scientific validation as a predictor. Many people use it as a language for reflection.
Daoly presents BaZi and the I Ching as cultural traditions and tools for self-reflection. Nothing here is a prediction or medical, legal, financial, or psychological advice.